PC-GB-0-EN

Gasport GB
Doc: PC-GB-0-EN
Butterfly damper valves
Solid and reliable performance butterfly dampers valves for industrial gas
applications, available for temperatures up to 1100ºC.
www.paravalves.com
Flowing innovation
Gasport GB Type
Gasport GB Type
Our paravalves Gasport
GB type butterfly valves
are are made generally
as a welded assembly
construction and made
for on/off or modulating
industrial gas applications.
index
2
About us
Pg. 04
i+D+i
Pg. 05
Quality
Pg. 05
Gasport GB Type valves
Pg. 06-07
Why gasport GB?
Pg. 06-07
General information
Pg. 08-09
Flow Characteristic Curve
Pg. 10
Seat configurations
Main features
Pg. 11
Pg. 12
Main industries
Pg. 13
GBS MODEL STANDARD BUTTERFLY DAMPER VALVE
Pg. 14
GBH MODEL HIGH TEMPERATURE BUTTERFLY DAMPER VALVE
Pg. 15
GBR MODEL REFRACTORY LINED BUTTERFLY DAMPER VALVE
Pg. 16
GBZ MODEL ZERO-LEAK BUTTERFLY DAMPER VALVE
Pg. 17
Tailored to your need
Pg. 18-19
Gasport GB Type
Gasport GB Type
We develop and manufacture industrial
valve solutions through constant, orderly
and structured innovation.
We believe that progressing is taking the
step, being the first, from the perseverance
and creativity of a professional, ingenious
and motivated team.
Innovation in movement, easily adapting
and overcoming every single obstacle.
More than
20 years
of endless
innovation
We are innovative mavericks with our product,
looking for constant innovation, exquisiteness,
searching for the best solution. And that
nonconformity is also reflected when it comes to the
service. We never stop at the superficial, we work from
empathy to know the customer beyond. To meet
all their expectations, and exceed them. To surpass
ourselves. And to solve, from the restlessness and
talent, any challenge that comes our way.
Flowing innovation
Engineering services to
Finite Element Analysis
determine flow coefficient
for components and
and capacity for valves.
assemblies, including a wide
Valve sizing and selection.
Customized special designs.
Maintenance works.
varity of loads, pressures,
temperature distributions,
etc…
Component replacements
NDE tests such as VT, RT, PT,
Equipment start-up
and special parts.
MT and UT.
supervision.
Quality
Our Quality Management System ensures every product is
delivered with the required quality level and comply with
all the established requirements. It conforms to the quality
management ISO 9001:2015 standard, as well as the
Design
Engineering
Manufacturing
Assembly
Testing and
validation
following directives:
| Pressure Equipment Directive PED 2014/68/UE.
| Machinery Directive 2006/42/EC.
| Explosive Atmosphere Directive 2014/34/UE.
4
5
Gasport GB Type
Gasport GB Type
Gasport GB
Butterfly damper valves by Paravalves
At paravalves, every development has in-house engineering and
manufacturing facilities for a wide range of industrial applications anywhere in
the world.
We work from the delivery and dedication, from the person. Always open to
any need, project, industry and customer. With the proactivity and intelligence
necessary to face any challenge proposed to us. An engineering and
Specially designed for
industrial gas applications
with maximum durability
and superior performance.
manufacturing team that goes hand in hand with the customer, to always offer
a reliable product, with high performance and durability.
Our Gasport GB Type butterfly damper valves are clasified as following,
depending on maximum working temperature and design:
GBS MODEL STANDARD BUTTERFLY DAMPER VALVE
GBH MODEL HIGH TEMPERATURE BUTTERFLY DAMPER VALVE
GBR MODEL REFRACTORY LINED BUTTERFLY DAMPER VALVE
GBZ MODEL ZERO-LEAK BUTTERFLY DAMPER VALVE
Beyond the valve
paravalves Gasport Butterfly damper valves are made as a welded assembly
construction and usually made for on/off or modulating gas applications.
Face to face determines the distance between flanges and this can also be
taylor-made to comply with customer project. Generally these equipments
are installed in a horizontal shaft-line position, but vertical assemblies are also
possible with our damper valves. Wafer type or ButtWelding ends can also be
supplied on request.
Why Gasport GB butterfly damper valves
Our engineered Butterfly damper valves are made to work in both flow
directions as a bidirectional design. The seat can be done as a swing-through
disc without seat or the disc can directly make contact with a metal plate
ensuring a maximum leak of 0.5%Kv value. Soft braided sealing option can
also be supplied on request, providing a more tightness damper closing. For
applications where a full 100% tightening is requested, an air sealing system
Reduced
maintenance
Lower cost of
ownership
Fully
customizable
with double parallel disc design can be made. For such cases, the seal is
Multiple end
connections
done in the space between both discs while injecting air at a higher pressure
than the one in the conduit. This system creates a pressurized chamber
preventing gases from escaping.
6
7
Gasport GB Type
Gasport
Gasport GB
GBType
Type
One design to
rule them all.
Gearbox, Electric actuator and Pneumatic actuation types are possible with Gasport GB butterfly damper valves. In
SIZE
DESIGN
PRESSURE
addition, multiple brands accesories and positioners are available for our actuators. The design allows them to be
interchangeable each other even without removing the valve from the pipeline. It most cases, drilled according to
UP TO
UP TO
DN2000
WORKING
TEMPERATURE
UP TO
1100ºC
0.5bar/
7.4 psi
ISO 5211 standard.
ON
REQUEST
Gearbox
Pneumatic
Electric
CUSTOMED
DESIGN
Other actuation options on request.
Computational Fluid Dynamics
non-conformist spirit that makes our engineering team go beyond.
At paravalves, Engineering team is able to perform Computational Fluid
Dynamics (CFD) as well as Finite Element Analysis (FEA) for valve components
and assemblies. Every design is carefully engineered and many calculations
are performed to obtain our solid and efficient valves.
Customers appreciate reliable values to evaluate controllability of paravalves
Butterfly Dampers. For every project, we can perform direct fluid studies to
obtain valve inherent flow characteristic curve so end user can evaluate
Body & Disc material
Carbon steel
pressure difference at most valve positions and flow values.
250ºC
AISI 304
AISI 316
650ºC
800ºC
1000ºC
AISI 310
Refractory concrete lining
1100ºC
8
9
Gasport GB Type
Gasport GB Type
Flow Characteristic
Curve.
Seat configurations
obtained by paravalves Engineering
team after several Computational Fluid
Dynamics (CFD) parametric studies.
100%
Butterfly damper valves generally obtain a
Relative Flow Coefficient value
characteristic curve that tends to be close
to an equal percentage performance
curve.
The equal percentage characteristic is
designed to make the rate of increase of
Kv proportional to the percentage opening
of the valve. This characteristic is ussually
selected for control applications because
it compoensates effectively the decreasing
90%
Seatless
80%
DN
Class
Value (FC 70-2)
70%
From 100 to 1500
I
Relative tightness
60%
50%
40%
Metal-to-metal seat
30%
20%
pressure differentials as flow rate increases.
10%
It gives a relative small increment in Kv for
0%
10%
the initial strokes but it has good capacity
20%
30%
40%
50%
60%
70%
80%
90%
DN
Class
Value (FC 70-2)
From 100 to 200
I
Relative tightness
From 250 to 1500
II
< 0,5%Kvs
100%
Relative openning value
as the valve opens at a faster rate after that.
Soft sealing with packing braid
Flow Coefficient Table
Flow Coefficient Values, Kv Units
DN
Class
Value (FC 70-2)
From 100 to 200
II
< 0,5%Kvs
DN
inch
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
From 250 to 1000
III
< 0,1%Kvs
100
4”
60
74
104
150
220
336
503
773
923
1026
From 1100 to 1500
II/IV
< 0,05%Kvs
150
6”
143
184
227
329
483
731
1119
1738
2190
2433
200
8”
208
299
383
554
831
1269
1988
3132
4061
4512
857
1300
1972
3113
4967
6575
7306
10”
310
399 table
580
Dimensional
250
Soft sealing with elastomer
DN
Class
Value (FC 70-2)
From 100 to 200
II
< 0,5%Kvs
From 250 to 1000
III
< 0,1%Kvs
From 1100 to 1500
II/IV
< 0,05%Kvs
300
12”
363
488
750
1157
1773
2711
4384
6972
9229
10254
350
14”
478
661
1003
1556
2398
3685
5984
9613
12030
13367
400
16”
666
855
1305
2025
3224
4981
7601
10819
12386
13762
450
18”
830
1013
1574
2465
3872
6002
9136
12955
14103
15670
500
20”
1002
1216
1953
3025
4778
7367
11320
16022
17261
19179
600
24”
1523
1881
2944
4486
7255
10964
16775
24214
26065
28961
700
28”
2054
2505
3993
6197
9592
14775
22776
32077
32940
36600
DN
Class
Value (FC 70-2)
From 100 to 600
VI
Zero leak
Air sealing system
800
32”
2620
3165
5240
8077
12358
24732
29778
42870
45741
50823
900
36”
3098
4140
6625
9760
15550
24732
38120
56108
61251
68057
950
38”
3844
5380
7672
11921
18481
28489
45206
70800
75957
84397
1000
40”
4185
5510
8193
12383
19680
31306
49745
71880
77278
85864
1100
44”
4921
6149
9936
14587
23615
36882
60158
90824
95165
105739
1200
48”
6006
7556
12111
17599
28256
45788
72289
108767
114996
127773
1300
52”
7044
8872
14758
20741
33295
52667
83329
110855
117230
130256
DN
Class
Value (FC 70-2)
1400
56”
7808
10200
16037
24095
38340
61050
97433
131781
132757
147508
From 100 to 600
VI
Zero leak
1500
60”
9321
11779
18571
27937
44364
69600
112134
154503
156634
174038
1600
64”
10637
13706
20091
31575
50644
79542
125794
164615
159288
176987
1800
72”
13494
16384
26120
39945
64072
100246
161316
217191
217200
241333
2000
80”
15505
20532
32197
49451
79025
123932
201057 10280455
311737
346374
Values are obtained in bar pressure and m3/h volume flow units to reach Kv value. In case Cv value is required, the following
formula can be applied for conversion: Cv=Kv/0.8565
Air inlet
Soft sealing with elastomer GBZ Model
11
Gasport GB Type
Actuator
Main features
Actuator support
Main industries
Our developments are solutions designed and
Working pressures up to 0.5 bar.
Top shaft
Different End connection types can
Packing Gland
be selected as wafer or butt welding
ends.
Packing
manufactured by ourselves that seek to reinvent the valve
industry. Avant-garde, freshness and groundbreaking
innovation that elevate the product from elegance,
difference and intelligence; offering ad-hoc solutions to
each industry and need.
Tailor-made solutions.
Epoxy coating for carbon steel
components.
Bolting
Bearing
Packing Bushing
Sizes up to DN2000.
AIR SEALING option can be done
to provide a 100% tightness of the
damper.
On/Off or Modulating service.
ISO 5211 drillings for
interchangeable actuators.
Pneumatic, Hydraulic, Electric or
manual actuation.
Alternative energies
Power
generation
Many organic materials are suitable as raw material for
Plant availability can be affected by unplanned downtime,
biogas like food waste, raw sewage, agricultural waste or
unpredictable power generation, high maintenance
manure. paravalves designs are able to perform well over
costs, and adherence to changing environmental and
all these materials flows.
safety regulatory requirements. paravalves Damper valve
paravalves Damper solutions are a great selection to
solutions are flexible and can be specially-made to fit
comply with the high standards and service conditions
customer needs.
required by a Biomass plant.
Biomass• Agricultural waste • Manure • Food waste
Coal Handling • Incineration Plants • Bottom Ash • Scrubbers • CoGeneration • Coal Combustion Residuals • Filter Feed Tank Isolation
Pulp
and paper
Steel
industry
Finding innovative ways of increasing production yields
paravalves is committed to provide tailor-made engineered
while lowering operating costs is mandatory to succeed in
solutions to their steel manufacturing industry customers.
Disc
Working temperatures up to 1100ºC.
Flange drillings to most standards.
Bottom Shaft
Special materials or treatments on
request.
Robust and reliable design.
the pulp and paper applications. Our Damper valves are
the ideal solution for the pulp and paper industry.
pH Addition Paper Additives • Batch Digester Gas Relief • Brown
Stock Rejects • Boiler Feedwater
12
Ore Feed • Dust and Dry Bulk Handling • Water Recycle • Hot Strip
Roll Cooling • Boiler Feedwater • Laminar Flow Cooling
13
Gasport GB Type
Gasport GB Type
7
3
7
6
6
1
3
4
2
2
1
4
8
8
GBH High Temperature
Butterfly
GBS Standard Butterfly
BUTTERFLY DAMPER VALVES BY PARAVALVES
WORKING
TEMPERATURE
DESIGN
PRESSURE
SIZE
In all sizes
0.5bar/
7.3psi
UP TO
DN2000
UP TO
250ºC
Item
Description
Available materials (others on request)
1
Body
Carbon steel / SS304 / SS316 / Duplex
2
Disc
SS304 / SS316
3
Shaft
Carbon steel / SS304 / SS316 / Duplex
4
Top gland
Carbon steel / SS304 / SS316 / Duplex
5
Packing
Graphite
6
Bearing
DI/SS
7
Actuator
support
Bolting
Carbon steel / SS304 / SS316
8
BUTTERFLY DAMPER VALVES BY PARAVALVES
WORKING
TEMPERATURE
DESIGN
PRESSURE
SIZE
In all sizes
0.5bar/
7.3psi
UP TO
DN2000
UP TO
1000ºC
Item
Description
Available materials (others on request)
1
Body
Carbon steel / SS304 / SS316 / Duplex
2
Disc
SS304 / SS316
3
Shaft
Carbon steel / SS304 / SS316 / Duplex
4
Down gland
Carbon steel / SS304 / SS316 / Duplex
5
Packing
Graphite
6
Bearing
DI/SS
7
Actuator
support
Bolting
Carbon steel / SS304 / SS316
8
ZN plated/A2/A4/SS310/SS321
ZN plated/A2/A4/SS310/SS321
Dimensional table
Dimensional table
Dimensional table
Dimensional table
EN1092 PN6
EN1092 PN10
ANSI 150#
EN1092 PN6
EN1092 PN10
ANSI 150#
DN
inch
L
H
ISO 5211
ØC
ØD
n-Tr
ØC
ØD
n-Tr
ØC
ØD
n-Tr
DN
inch
L
H
ISO 5211
ØC
ØD
n-Tr
ØC
ØD
n-Tr
ØC
ØD
n-Tr
100
4”
100
295
F07
170
210
4-M16
180
220
8-M16
120.7
150
4-5/8”
100
4”
100
595
F07
170
210
4-M16
180
220
8-M16
120.7
150
4-5/8”
150
6”
100
310
F07
225
265
8-M16
240
285
8-M20
152.4
190
4-5/8”
150
6”
100
610
F07
225
265
8-M16
240
285
8-M20
152.4
190
4-5/8”
200
8”
100
330
F07
280
320
8-M16
295
340
8-M20
190.5
230
8-5/8”
200
8”
100
630
F07
280
320
8-M16
295
340
8-M20
190.5
230
8-5/8”
250
10”
100
355
F07
338
375
12-M16
350
395
12-M20
241.3
280
8-3/4”
250
10”
100
705
F07
338
375
12-M16
350
395
12-M20
241.3
280
8-3/4”
300
12”
100
375
F10
395
440
12-M20
400
445
12-M20
298.5
345
8-3/4”
300
12”
100
735
F10
395
440
12-M20
400
445
12-M20
298.5
345
8-3/4”
350
14”
100
395
F07
445
495
12-M20
460
505
16-M20
362
405
12-7/8”
350
14”
100
745
F07
445
495
12-M20
460
505
16-M20
362
405
12-7/8”
400
16”
100
420
F07
495
540
16-M20
565
515
16-M24
431.8
485
12-7/8”
400
16”
100
770
F07
495
540
16-M20
565
515
16-M24
431.8
485
12-7/8”
450
18”
100
475
F07
550
595
16-M20
565
615
20-M24
476.3
535
12-1”
450
18”
100
825
F07
550
595
16-M20
565
615
20-M24
476.3
535
12-1”
500
20”
100
501
F10
600
645
20-M20
620
670
20-M24
539.8
595
16-1”
500
20”
100
851
F10
600
645
20-M20
620
670
20-M24
539.8
595
16-1”
600
24”
126
551
F10
705
755
20-M24
725
780
20-M27
577.9
635
16-1-1/8”
600
24”
126
901
F10
705
755
20-M24
725
780
20-M27
577.9
635
16-1-1/8”
700
28”
126
601
F10
810
860
24-M24
840
895
24-M27
635
700
20-1-1/8”
700
28”
126
951
F10
810
860
24-M24
840
895
24-M27
635
700
20-1-1/8”
800
32”
126
651
F10
920
975
24-M27
950
1015
24-M30
749.3
815
16-1-1/4”
800
32”
126
1001
F10
920
975
24-M27
950
1015
24-M30
749.3
815
16-1-1/4”
14
15
Gasport GB Type
Gasport GB Type
7
3
6
7
4
2
5
2
1
4
1
3
8
8
GBZ Zero-leak
Butterfly
GBR Refractory lined
Butterfly
BUTTERFLY DAMPER VALVES BY PARAVALVES
WORKING
TEMPERATURE
DESIGN
PRESSURE
SIZE
In all sizes
0.5bar/
7.3psi
UP TO
DN2000
UP TO
1100ºC
Item
Description
Available materials (others on request)
Item
Description
Available materials (others on request)
1
Body
Carbon steel / SS304 / SS316 / Duplex
1
Body
Carbon steel / SS304 / SS316 / Duplex
2
Disc
SS304 / SS316
2
Disc
SS304 / SS316
3
Shaft
Carbon steel / SS304 / SS316 / Duplex
3
Shaft
Carbon steel / SS304 / SS316 / Duplex
4
Down gland
Carbon steel / SS304 / SS316 / Duplex
4
Fork
Carbon steel / SS304 / SS316 / Duplex
5
Top bushing
Bronze
6
Axial bearing
DI/SS
7
Actuator
support
Bolting
Carbon steel / SS304 / SS316
Packing
Graphite
6
Bearing
DI/SS
7
Actuator
support
Bolting
Carbon steel / SS304 / SS316
WORKING
TEMPERATURE
DESIGN
PRESSURE
SIZE
5
8
BUTTERFLY DAMPER VALVES BY PARAVALVES
In all sizes
ZN plated/A2/A4/SS310/SS321
Dimensional table
Dimensional table
3bar/
43.5psi
UP TO
DN1000
UP TO
300ºC
8
ZN plated/A2/A4/SS310/SS321
Dimensional table
Dimensional table
EN1092 PN6
EN1092 PN10
ANSI 150#
EN1092 PN6
EN1092 PN10
ANSI 150#
DN
inch
L
H
ISO 5211
ØC
ØD
n-Tr
ØC
ØD
n-Tr
ØC
ØD
n-Tr
DN
inch
L
H
ISO 5211
ØC
ØD
n-Tr
ØC
ØD
n-Tr
ØC
ØD
n-Tr
100
4”
100
595
F07
170
210
4-M16
180
220
8-M16
120.7
150
4-5/8”
100
4”
100
595
F07
170
210
4-M16
180
220
8-M16
120.7
150
4-5/8”
150
6”
100
610
F07
225
265
8-M16
240
285
8-M20
152.4
190
4-5/8”
150
6”
100
610
F07
225
265
8-M16
240
285
8-M20
152.4
190
4-5/8”
200
8”
100
630
F07
280
320
8-M16
295
340
8-M20
190.5
230
8-5/8”
200
8”
100
630
F07
280
320
8-M16
295
340
8-M20
190.5
230
8-5/8”
250
10”
100
705
F07
338
375
12-M16
350
395
12-M20
241.3
280
8-3/4”
250
10”
100
705
F07
338
375
12-M16
350
395
12-M20
241.3
280
8-3/4”
300
12”
100
735
F10
395
440
12-M20
400
445
12-M20
298.5
345
8-3/4”
300
12”
100
735
F10
395
440
12-M20
400
445
12-M20
298.5
345
8-3/4”
350
14”
100
745
F07
445
495
12-M20
460
505
16-M20
362
405
12-7/8”
350
14”
100
745
F07
445
495
12-M20
460
505
16-M20
362
405
12-7/8”
400
16”
100
770
F07
495
540
16-M20
565
515
16-M24
431.8
485
12-7/8”
400
16”
100
770
F07
495
540
16-M20
565
515
16-M24
431.8
485
12-7/8”
450
18”
100
825
F07
550
595
16-M20
565
615
20-M24
476.3
535
12-1”
450
18”
100
825
F07
550
595
16-M20
565
615
20-M24
476.3
535
12-1”
500
20”
100
851
F10
600
645
20-M20
620
670
20-M24
539.8
595
16-1”
500
20”
100
851
F10
600
645
20-M20
620
670
20-M24
539.8
595
16-1”
600
24”
126
901
F10
705
755
20-M24
725
780
20-M27
577.9
635
16-1-1/8”
600
24”
126
901
F10
705
755
20-M24
725
780
20-M27
577.9
635
16-1-1/8”
700
28”
126
951
F10
810
860
24-M24
840
895
24-M27
635
700
20-1-1/8”
700
28”
126
951
F10
810
860
24-M24
840
895
24-M27
635
700
20-1-1/8”
800
32”
126
1001
F10
920
975
24-M27
950
1015
24-M30
749.3
815
16-1-1/4”
800
32”
126
1001
F10
920
975
24-M27
950
1015
24-M30
749.3
815
16-1-1/4”
16
17
Gasport GB Type
Gasport GB Type
At paravalves, all products and equipment are carefully
designed and manufactured to provide customized,
effective and durable solutions. We develop valves tailored
to each need, customer and project, so that we ensure an
effective, optimal and durable solution over time.
A non-conformist spirit that makes us always go beyond.
Tailored
to your need
We develop valves tailored to each
need, customer and project, so that
we ensure an effective, optimal and
durable solution over time.
Bearing design
for smoother
operation
ISO 5211flange for
interchangeable
actuators
Custom flange
drilling to fit any
requirement
18
Wide range of
manufacturing materials
for every component
Special face to
face on request
19
Gasport GB Type
Gasport GB Type
20
21
Gasport GB Type
Flowing innovation
C/Iribar B1,
20018, San Sebastián,
Guipúzcoa. SPAIN
+34 943 228 042
www.paravalves.com
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